Refrigerator.



J. G. KELLY.

REFRIGERATOR.

APPLICATION FILED JUNE 15, 1908.

Patented Aug. 3, 1909.

:asr .co Y" UnrrED STATES Parana? our-I E.

JAMES o. KELLY, or DE KALB, ILLINOIS, AssIc:\'oR.oF slx-rnn'rns'ro CHARLES-F. SMITH,

or DE KALB, ILLINOIS.

REFRIGERATOR.

To whom it may concern: Be'it known that I, J AMES 0. KELLY, a citizen of the United States, residing at De Kalb,

"using ice, the refrigerator being so constructed that the ,cost of, maintaining the interiorthereof'at a predetermined temperature is greatly reduced as compared with those types of refrigerators in which ice is utilized.

With these and other objects in view the invention consists of certain novel features of construction and combinations: of parts which will be hereinafter more fully described and point-ed out in the claims.

In the accompanying drawings is shown the preferred form of the invention.

In said drawings: Figure 1 is a front ele-v vation of a refrigerator constructed in accordance with the present invention. Fig. 2 is a central vertical section therethrough. Fig. 3is a central horizontal section. Fig. 4 is a vertical section through a. portion of the refrigerator and showing the feed and drain pipe in elevation. Fig. 5 is a vertical section of a portion of a refrigerator and'showing in elevation the pi e employed for establishing communication )etwecn the inner and outer refrigerating compartments.

Referring to the figures by characters of reference, 1 designates the outer cylindrical shell of the refrigerator and .within this shell and spaced therefrom and from the top and bottom of said outer shell are inner cylindrical shells 2, 3 and 4, all of said shells being preferably formed of metal and forming a refrigerant compartment 5 and insulating compartments 6 and 7 therebetween. The inner compartment 5 is located between the two inner shells 3 and 4 while the insulating compartment 7 is located between the two outer shells and 2. The inner insulating com artmen-t 6 is disposed between the two shel s 2 and 3. All of these cor-npartments are cointinuous in that they extend around, over and under the iInu-r or provision chamber S bf the refrigerator. The compartment 7 Specification of Letters Patent. Application filed 'J'une 15, 1908. Serial No 438,648.

Patented Aug. 3, 1809.

7 is preferably packed with charcoal, sawdust, or any other suitable material such as indicated .at 9 whereby atmospherieheat may be kept from the inner shell of the device.

A clrcular discharge pipe 10 having minute apertures is located bet'weenthe bottom portlons of the shells-3 and 4 and is fed from a stand pipe 11 extending upwardly between the two shells'3 and 4 and through the to s of the outer shells, the upper or accessible end of the stand pi e being preferably pro vided with a suitab e valve 12' whereby the admission of air-to the stand pipe 'canbe readily controlled. A blow-off Ipipe 13 extends from the upper portion of t e compartmentfi and through the outer shells 1 and 2, said pipe having a safety valve 14 thereon designed to open at a predetei'mined'pressure. Another pipe 15 extends from the u er part of the inner compartment 5 to the owe-r portion of the inner insulating com partment 6, the intermediate portion of said pipe 15 being, preferably positioned outsideof the -fe frigerator and provided with a valve 16 whereby communication between the two compartments 5 and 6 through this pipe may be controlled. A water supply pipe 17 extends upwardly and opens into the upper portion of the refrigerant compartment 5,

'- there being valves 18 and 19 in the upper and lower portions of this pipe for oontro the action of the water therein. A drain pipe 20 extends downward from pipe 17 and is valved as shown atll], and branch pipes 22 and 23 extend from the lower portions of the compartments .6 and 5 respectively, each of said drains having a valve 24 for closing it.

A door opening 25 is formed wi hin all of the shells, the compartments being closed where they surround the door opening. The hinged door :26 which is normally seated within the opening 25 is made up of spaced plates .27 corresponding with the shells i, 2, 3 and 4, the spaces between the inner and outer pairs of plates being preferably filled .with suitable insulating material such as that used in the compartment 7.

A gage glass 28 is located preferably upon the front portion of the r frigerator and opens at its ends into the innir compartment 5. A ventilating tube 29 e tends through the top portidns of the shells fend opens at its upon the inner face of the top of the inner open a ly'formed within the cover. 32..

' phere. By providing the tube 29 the properatnre within the compartment and obvtaining the provision chamber at a reduced.

BEST

lower end into an apertured cap 30 secured shell 4. The upper end of the tube, which extends through the top of the outer shell 1' is provided with a valve 31 designed to open outwardly under pressure from within the refrigerator. A concave-convex cover 32 is arranged normally, upon the top of the refrigerator there being a compartment 33 thereunder into which the pipe 11 and the tube 29 Ventilating openings 34 are refert is of course to be understood that any desired ar-- rangement of shelves 35 may be provided within the provision chamber 8.

When it is desired to use this refrigerator water is supplied in the inner com artment 5 from pipe 17 until a desired'leve has been reached within said compartment, sa'id level being indicated in the lass28. A suitable heat absorbing chemica is then supplied to the pipe 10 through stand ipell and this chemical, which may be in t e form of muriate of ammonia will flow-directly throu h the minute openings within the pipe 10 an commingle with the water contained Within compartment 5; Obviously, the dischar e of the chemical through the openings can I e more or less regulated by means of the valve 12 which can be shifted so as to control the admission of air to the stand pipe. As the chemical mixes with the water contained within compartment 5 the heat within the water will be absorbedthereby and the temviously within the chamber 8 will thus be reduced. Any gases, such as ammonla gas arising from the mixture in compartment 5 Y will be free to pass through the pipe'15 to the lower portion of the compartment 6, thus assisting in the insulation of the rovision chamber against the action of the rent concontained within the surrounding atmosvision chamber 8 is thoroughly ventilated at all times.

It will be found that by using a refrigerator such as herein described the cost of maintemperature considerably less than where ice utilized for keeping cool a PIOVISIOH chamber of similar size.

*hat is claimed is:

1. A refrigerator comprising nested spaced concentric shells surrounding an inner provision chamber, said shells forminga rel'rig erant compartment and inner and outer insulating compartments therel etween, chemical distributing means within the refrigerant compartment, means for supplying water to I said compartment, and means for directing i gasffrom the upper portion of said compartment to the inner insulating compartment.

2. A refrigerator comprising nested spaced 1 concentric shells surrounding an inner prosulating compartments, insulating material within the outer insulating compartment, means for directing water into the refrigerant compartment, means for distributing a heat absorbing chemical within the water contained in the inner refrigerant compartment, and means for establishing communication between the upper'portion of said refrigerant compartment-and the inner insulatmg compartment.

3. A'refrigerator comprising spaced nested concentric shells surrounding a provision chamber, said shells forming a refri erant compartment and inner and outer insu ating compartments, a circular apertured distributa stand pipe opening thereinto and extending beyond the outer shell, means for supplying a liquid to the refrigerant compartment, and means for directing gas from said cornpartment to the inner insulating compartment.

4. A refri erator comprising concentric nested spaced chamber, said shells forming a refrigerant compartment, and inner and'outer insulatin compartments,- a circular apertured distri uting pipe within the bottom portion of the refrigerant compartment, a stand pipe extending therefrom and'beyond the outer shell, means for directinglwater into the refrigerant gonpartment, means for conveying gas from sai compartment to the inner insulating compartment, valved drains extending from said compartments, and a blow-oil pipe extending from the inner insulating compartment.

5. A refrigerator comprising nested concentric shells surrounding a provision chamher and forming a refrigerant compartment and an insulating com iartment, means for su plying a heat absor )ing mixture to the re 'rigerant compartment, and .means for directing gas from said compartment to the i n- Sula-t ng compartment for insulating purposes.

6. A refrigerator comprising concentric nested shells surrounding a provision chamber, said shells forming compartments therebctween, means for supplying a heat absorbing .mixture to one of said compartments, valved means-for conveying gas from said coin artment tothe other compartment for insu ating purposes, and an automatic blowofl' extending from the gas receiving compertinent.

'7. A refrigerator comprising nested concentric shells surrounding a provision chamber and forming compartments therebetween, a ventilating tube extending from the provision chamber and through the shells, a

shells surrounding a provision ing pipe within the refrigerant compartment,

cover removably mounted upon the shells,

means below the closure and extending into the shells .for sup lying a. "heat absorbing my own, I have hereto affixedmy signature nlilatefiizfi to one of itl e comfartmnts betweeg in the presence of two witnesses. t es e s, means orsu yin water to sai compartment, andmea n for eonveying gas KELLY 5 from said compartment to the other com- Witnesses:

partment. I MARGARET PENNY, In testimony that I claim the foregoing as f JULIUs E. MATTESON. 

